CET PMC-340 - Appendix B Technical Specifications

CET Inc.
55
Appendix B Technical Specifications
Inputs (L1, L2, L3, N)
Voltage (Un)
Range
Burden
240VLN
0.7 to 1.1 Un
<10VA/phase
Direct Input
Current (Ib/Imax)
Range
Starting Current
Burden
Wire Size
Torque for terminals
CT Input
Current (In/Imax)
Range
Starting Current
Burden
20A/100A
0.4% Ib to Imax
0.4% Ib
<4VA/phase
Maximum 35mm
2
(3 AWG)
Maximum 2.5 N.m
5A/6A
(0.1%-120%) In
0.1% In
<0.5VA/phase
Frequency
45Hz-65Hz
Solid State Energy Pulse Output (Selectable - kWh/kvarh)
Pulse Constant
Isolation
Max. Load Voltage
Max. Forward Current
Pulse Width
1/10/100/1000/3200 imp/kWh (imp/kvarh)
Optical
80V
50mA
60-150ms
Communications
RS-485
Baudrate
Maximum Wire Size
Maximum Torque
Modbus RTU
1200/2400/4800/9600/19200 bps
1.5 mm
2
(16 AWG)
0.45 N.m.
Environmental Conditions
Operating Temp.
Storage Temp.
Humidity
Atmospheric pressure
Pollution Degree
-25°C to +70°C
-40°C to +85°C
5% to 95% non-condensing
70kPa to 106kPa
2
Mechanical Characteristics
Mounting
Unit Dimensions
Shipping Weight
Shipping Dimensions
IP Rating
DIN Rail
126x90x65mm
165x140x110mm
TBD
51 (Front), 30 (Body)
Accuracy
Parameters
Accuracy
Resolution
Voltage
±0.5%
0.01V
Current
±0.5%
0.001A
kW, kvar, kVA
±1%
0.01kW/kvar/kVA
kWh, kVAh
IEC 62053-21 Class 1 for Direct Input
0.01kxh
IEC 62053-22 Class 0.5S for 5A CT Input
kvarh
IEC 62053-23 Class 2
0.01kvarh
PF
±1%
0.001
Frequency
±0.02Hz
0.01Hz
Harmonics
IEC 61000-4-7 Class B
0.1%
TDD
IEC 61000-4-7 Class B
0.1%
Crest Factor
0.5%
-
K-Factor
5%
-